May weather forecastAlcobaça, Portugal

May

Weather in May

May, the last month of the spring in Alcobaça, is a pleasant month, with an average temperature varying between 12.9°C (55.2°F) and 21.1°C (70°F).

Temperature

May's weather displays an average high-temperature of an agreeable 21.1°C (70°F), slightly varied from April's 18.2°C (64.8°F). Throughout the month of May, the nighttime temperature dips to an average of 12.9°C (55.2°F).

Humidity

In Alcobaça, the average relative humidity in May is 73%.

Rainfall

In Alcobaça, in May, it is raining for 7.7 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 103.3 rainfall days, and 370mm (14.57") of precipitation is accumulated.

Daylight

In Alcobaça, Portugal, the average length of the day in May is 14h and 22min.
On the first day of May, sunrise is at 06:35 and sunset at 20:29. On the last day of the month, sunrise is at 06:10 and sunset at 20:56 WEST.

Sunshine

In Alcobaça, the average sunshine in May is 9.8h.

UV index

In Alcobaça, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 during May leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. When the Sun is at its strongest around midday, find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In May, the average high-temperature and low-temperature are 21.1°C (70°F) and 12.9°C (55.2°F) respectively.

In Alcobaça, the average relative humidity in May is 73%.

In May, the rain falls for 7.7 days. Throughout May, 24mm (0.94") of precipitation is accumulated.

In Alcobaça, the average day length in May is 14h and 22min.

In May, on the first day of the month, sunrise is at 06:35 and sunset at 20:29. On the last day of the month, in Alcobaça, Portugal, sunrise is at 06:10 and sunset at 20:56 WEST.

In May, the average sunshine duration is 9.8h.

In Alcobaça, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

18.2°C

21.1°C

23.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15km/h

15.3km/h

15.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

15.8

22.4

22.9

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Alcobaça, Portugal

Average high temperature in May: 21.1°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (13.7°C).

Average low temperature in May: 12.9°C

The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (7.9°C).

Average pressure in May
Alcobaça, Portugal

Average pressure in May: 1016.3mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in May
Alcobaça, Portugal

Average wind speed in May: 14.3km/h

The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is September (11.9km/h).

Average humidity in May
Alcobaça, Portugal

Average humidity in May: 73%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (70%).

Average rainfall in May
Alcobaça, Portugal

Average rainfall in May: 24mm

The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (3mm).

Average rainfall days in May
Alcobaça, Portugal

Average rainfall days in May: 7.7 days

The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (2.4 days).

Average daylight in May /
Average sunshine in May
Alcobaça, Portugal

Average daylight in May: 14h and 24min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in May: 9h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in May
Alcobaça, Portugal

Average sunshine days in May: 22.4 days

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is November (15.7 days).

Average UV index in May
Alcobaça, Portugal

Average UV index in May: 5

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in May
Alcobaça, Portugal

Average cloud cover in May: 31

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 24).

Average visibility in May
Alcobaça, Portugal

Average visibility in May: 9km

The months with the highest visibility are February, June and December (10km).
The months with the lowest visibility are January, March, April, May, July, August, September, October and November (9km).